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/* Copyright (c) 1991 Regents of the University of California */ |
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|
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#ifndef lint |
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< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* Combine picture files according to calcomp functions. |
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* |
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* 1/4/89 |
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*/ |
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|
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#include <stdio.h> |
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|
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#include <errno.h> |
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|
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#include "platform.h" |
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#include "standard.h" |
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#include "paths.h" |
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#include "color.h" |
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|
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#include "resolu.h" |
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|
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#include "calcomp.h" |
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#include "view.h" |
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|
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#define MAXINP 32 /* maximum number of input files */ |
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#define WINSIZ 9 /* scanline window size */ |
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#define MIDSCN 4 /* current scan position */ |
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#define MAXINP 1024 /* maximum number of input files */ |
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#define WINSIZ 127 /* scanline window size */ |
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#define MIDSCN ((WINSIZ-1)/2+1) |
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|
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struct { |
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char *name; /* file or command name */ |
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FILE *fp; /* stream pointer */ |
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VIEW vw; /* view for picture */ |
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RESOLU rs; /* image resolution and orientation */ |
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int infloat; /* input is floating point (#comp)? */ |
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float pa; /* pixel aspect ratio */ |
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COLOR *scan[WINSIZ]; /* input scanline window */ |
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COLOR coef; /* coefficient */ |
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COLOR expos; /* recorded exposure */ |
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|
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int nfiles; /* number of input files */ |
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|
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VIEW *commvp = NULL; /* common view parameters */ |
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|
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char ourfmt[MAXFMTLEN] = PICFMT; /* input picture format */ |
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int outfloat = 0; /* #component float output? */ |
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|
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char StandardInput[] = "<stdin>"; |
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char Command[] = "<Command>"; |
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char vcolin[3][4] = {"ri", "gi", "bi"}; |
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char vcolout[3][4] = {"ro", "go", "bo"}; |
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char vbrtin[] = "li"; |
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char vbrtout[] = "lo"; |
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char vcolexp[3][4] = {"re", "ge", "be"}; |
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char vbrtexp[] = "le"; |
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char vpixaspect[] = "pa"; |
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|
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char vray[7][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz", "T"}; |
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|
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char vpsize[] = "S"; |
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|
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char vnfiles[] = "nfiles"; |
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char vwhteff[] = "WE"; |
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char vxmax[] = "xmax"; |
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char vymax[] = "ymax"; |
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char vxres[] = "xres"; |
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|
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int xpos, ypos; /* output position */ |
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|
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char *progname; /* global argv[0] */ |
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|
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int echoheader = 1; |
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int wrongformat = 0; |
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int gotview; |
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|
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FILE *popen(); |
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|
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static gethfunc headline; |
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static void checkfile(int orig); |
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static double rgb_bright(COLOR clr); |
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static double xyz_bright(COLOR clr); |
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static void init(void); |
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static void combine(void); |
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static void advance(void); |
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static double l_expos(char *nam); |
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static double l_pixaspect(char *nm); |
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static double l_colin(char *nam); |
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static double l_ray(char *nam); |
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static double l_psize(char *nm); |
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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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|
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int |
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main( |
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int argc, |
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char *argv[] |
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) |
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{ |
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int original; |
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double f; |
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int a, i; |
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int a; |
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|
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SET_DEFAULT_BINARY(); |
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SET_FILE_BINARY(stdin); |
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SET_FILE_BINARY(stdout); |
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progname = argv[0]; |
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esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
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esupport &= ~(E_OUTCHAN|E_INCHAN); |
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/* scan options */ |
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for (a = 1; a < argc; a++) { |
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if (argv[a][0] == '-') |
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case 'w': |
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nowarn = !nowarn; |
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continue; |
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case 'h': |
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echoheader = !echoheader; |
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continue; |
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case 'f': |
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if (argv[a][2]) { |
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outfloat = (argv[a][2] == 'f'); |
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continue; |
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} |
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/* fall through */ |
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case 'e': |
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a++; |
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continue; |
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} |
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break; |
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} |
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newheader("RADIANCE", stdout); /* start header */ |
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fputnow(stdout); |
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/* process files */ |
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for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
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input[nfiles].vw = stdview; |
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input[nfiles].pa = 1.0; |
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} |
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nfiles = 0; |
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original = 0; |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case '\0': |
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input[nfiles].name = "<stdin>"; |
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input[nfiles].name = StandardInput; |
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input[nfiles].fp = stdin; |
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break; |
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case 'o': |
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} |
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else { |
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if (argv[a][0] == '!') { |
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input[nfiles].name = "<Command>"; |
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input[nfiles].name = Command; |
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input[nfiles].fp = popen(argv[a]+1, "r"); |
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} else { |
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input[nfiles].name = argv[a]; |
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quit(1); |
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} |
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} |
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checkfile(); |
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if (original) { |
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colval(input[nfiles].coef,RED) /= |
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colval(input[nfiles].expos,RED); |
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colval(input[nfiles].coef,GRN) /= |
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colval(input[nfiles].expos,GRN); |
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colval(input[nfiles].coef,BLU) /= |
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colval(input[nfiles].expos,BLU); |
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} |
187 |
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checkfile(original); |
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nfiles++; |
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original = 0; |
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} |
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init(); /* set constants */ |
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/* go back and get expressions */ |
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for (a = 1; a < argc; a++) { |
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char *fpath; |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
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continue; |
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case 'w': |
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continue; |
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case 'h': |
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continue; |
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case 'f': |
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< |
fcompile(argv[++a]); |
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> |
if (argv[a][2]) |
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continue; |
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> |
fpath = getpath(argv[++a], getrlibpath(), 0); |
211 |
> |
if (fpath == NULL) { |
212 |
> |
eputs(argv[0]); |
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> |
eputs(": cannot find file '"); |
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> |
eputs(argv[a]); |
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eputs("'\n"); |
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quit(1); |
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} |
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> |
fcompile(fpath); |
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continue; |
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case 'e': |
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scompile(argv[++a], NULL, 0); |
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} |
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break; |
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} |
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/* set/get output resolution */ |
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if (!vardefined(vxres)) |
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varset(vxres, ':', (double)xmax); |
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< |
if (!vardefined(vyres)) |
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varset(vyres, ':', (double)ymax); |
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> |
/* get output resolution */ |
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xres = varvalue(vxres) + .5; |
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yres = varvalue(vyres) + .5; |
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if (xres <= 0 || yres <= 0) { |
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eputs(": illegal output resolution\n"); |
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quit(1); |
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} |
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/* complete header */ |
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< |
printargs(argc, argv, stdout); |
236 |
< |
fputformat(COLRFMT, stdout); |
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< |
putchar('\n'); |
238 |
< |
fprtresolu(xres, yres, stdout); |
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< |
/* combine pictures */ |
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< |
combine(); |
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> |
if (!vardefined(vbrtout)) /* single or 3-channel? */ |
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> |
outfloat *= 3; |
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|
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> |
printargs(argc, argv, stdout); /* complete header */ |
238 |
> |
if (commvp != NULL) { |
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> |
fputs(VIEWSTR, stdout); |
240 |
> |
fprintview(commvp, stdout); |
241 |
> |
fputc('\n', stdout); |
242 |
> |
} |
243 |
> |
if (outfloat) { /* print format if known */ |
244 |
> |
printf("NROWS=%d\nNCOLS=%d\n", yres, xres); |
245 |
> |
fputncomp(outfloat, stdout); |
246 |
> |
fputendian(stdout); |
247 |
> |
fputformat("float", stdout); |
248 |
> |
} else if (strcmp(ourfmt, PICFMT)) |
249 |
> |
fputformat(ourfmt, stdout); |
250 |
> |
fputc('\n', stdout); /* end header */ |
251 |
> |
if (!outfloat) |
252 |
> |
fprtresolu(xres, yres, stdout); |
253 |
> |
|
254 |
> |
combine(); /* combine pictures */ |
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quit(0); |
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usage: |
257 |
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eputs("Usage: "); |
258 |
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eputs(argv[0]); |
259 |
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eputs( |
260 |
< |
" [-w][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
260 |
> |
" [-w][-h][-ff][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] hdr ..]\n"); |
261 |
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quit(1); |
262 |
+ |
return 1; /* pro forma return */ |
263 |
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} |
264 |
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|
265 |
|
|
266 |
< |
tputs(s) /* put out string preceded by a tab */ |
267 |
< |
char *s; |
266 |
> |
static int |
267 |
> |
headline( /* check header line & echo if requested */ |
268 |
> |
char *s, |
269 |
> |
void *p |
270 |
> |
) |
271 |
|
{ |
272 |
< |
char fmt[32]; |
272 |
> |
int orig = *(int *)p; |
273 |
> |
char fmt[MAXFMTLEN]; |
274 |
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double d; |
275 |
+ |
int bigend; |
276 |
|
COLOR ctmp; |
277 |
|
|
278 |
< |
if (isformat(s)) { /* check format */ |
279 |
< |
formatval(fmt, s); |
280 |
< |
wrongformat = strcmp(fmt, COLRFMT); |
281 |
< |
return; /* don't echo */ |
278 |
> |
if (isheadid(s)) /* header id */ |
279 |
> |
return(0); /* don't echo */ |
280 |
> |
if (formatval(fmt, s)) { /* check format */ |
281 |
> |
if (globmatch(ourfmt, fmt)) { |
282 |
> |
wrongformat = 0; |
283 |
> |
strcpy(ourfmt, fmt); |
284 |
> |
} else if (!strcmp("float", fmt)) |
285 |
> |
input[nfiles].infloat *= -1; |
286 |
> |
else |
287 |
> |
wrongformat = globmatch(PICFMT, fmt) ? 1 : -1; |
288 |
> |
return(0); /* don't echo */ |
289 |
|
} |
290 |
< |
if (isexpos(s)) { /* exposure */ |
290 |
> |
if ((bigend = isbigendian(s)) >= 0) { |
291 |
> |
if (bigend != nativebigendian()) { |
292 |
> |
eputs(input[nfiles].name); |
293 |
> |
eputs(": unsupported input byte ordering\n"); |
294 |
> |
quit(1); |
295 |
> |
} |
296 |
> |
return(0); /* don't echo */ |
297 |
> |
} |
298 |
> |
if (!strncmp("NROWS=", s, 6)) { /* X-resolution */ |
299 |
> |
input[nfiles].rs.yr = atoi(s+6); |
300 |
> |
return(0); /* don't echo */ |
301 |
> |
} |
302 |
> |
if (!strncmp("NCOLS=", s, 6)) { /* Y-resolution */ |
303 |
> |
input[nfiles].rs.xr = atoi(s+6); |
304 |
> |
return(0); /* don't echo */ |
305 |
> |
} |
306 |
> |
if (isncomp(s)) /* # components */ |
307 |
> |
input[nfiles].infloat *= ncompval(s); |
308 |
> |
|
309 |
> |
if (orig) { /* undo exposure? */ |
310 |
> |
if (isexpos(s)) { |
311 |
> |
d = 1./exposval(s); |
312 |
> |
scalecolor(input[nfiles].coef, d); |
313 |
> |
return(0); /* don't echo */ |
314 |
> |
} |
315 |
> |
if (iscolcor(s)) { |
316 |
> |
int i; |
317 |
> |
colcorval(ctmp, s); |
318 |
> |
for (i = 3; i--; ) |
319 |
> |
colval(input[nfiles].coef,i) /= colval(ctmp,i); |
320 |
> |
return(0); /* don't echo */ |
321 |
> |
} |
322 |
> |
} else if (isexpos(s)) { /* record exposure? */ |
323 |
|
d = exposval(s); |
324 |
|
scalecolor(input[nfiles].expos, d); |
325 |
< |
} else if (iscolcor(s)) { /* color correction */ |
325 |
> |
} else if (iscolcor(s)) { |
326 |
|
colcorval(ctmp, s); |
327 |
|
multcolor(input[nfiles].expos, ctmp); |
328 |
|
} |
329 |
< |
/* echo line */ |
330 |
< |
putchar('\t'); |
331 |
< |
fputs(s, stdout); |
329 |
> |
if (isaspect(s)) |
330 |
> |
input[nfiles].pa *= aspectval(s); |
331 |
> |
else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
332 |
> |
gotview++; |
333 |
> |
|
334 |
> |
if (echoheader) { /* echo line */ |
335 |
> |
putchar('\t'); |
336 |
> |
return(fputs(s, stdout)); |
337 |
> |
} |
338 |
> |
return(0); |
339 |
|
} |
340 |
|
|
341 |
|
|
342 |
< |
checkfile() /* ready a file */ |
342 |
> |
static void |
343 |
> |
checkfile(int orig) /* ready a file */ |
344 |
|
{ |
345 |
< |
int xinp, yinp; |
230 |
< |
register int i; |
345 |
> |
int i; |
346 |
|
/* process header */ |
347 |
< |
fputs(input[nfiles].name, stdout); |
348 |
< |
fputs(":\n", stdout); |
349 |
< |
getheader(input[nfiles].fp, tputs, NULL); |
350 |
< |
if (wrongformat) { |
347 |
> |
gotview = 0; |
348 |
> |
input[nfiles].infloat = -1; |
349 |
> |
input[nfiles].rs.rt = PIXSTANDARD; |
350 |
> |
input[nfiles].rs.xr = input[nfiles].rs.yr = 0; |
351 |
> |
if (echoheader) { |
352 |
> |
fputs(input[nfiles].name, stdout); |
353 |
> |
fputs(":\n", stdout); |
354 |
> |
} |
355 |
> |
getheader(input[nfiles].fp, headline, &orig); |
356 |
> |
|
357 |
> |
if (input[nfiles].infloat <= 0) |
358 |
> |
input[nfiles].infloat = 0; |
359 |
> |
else if ((input[nfiles].infloat != 3) & |
360 |
> |
(input[nfiles].infloat != 1)) { |
361 |
|
eputs(input[nfiles].name); |
362 |
< |
eputs(": not in Radiance picture format\n"); |
362 |
> |
eputs(": unsupported number of components\n"); |
363 |
|
quit(1); |
364 |
|
} |
365 |
< |
if (fgetresolu(&xinp, &yinp, input[nfiles].fp) < 0) { |
365 |
> |
if (wrongformat < 0) { |
366 |
|
eputs(input[nfiles].name); |
367 |
+ |
eputs(": not a Radiance picture or float matrix\n"); |
368 |
+ |
quit(1); |
369 |
+ |
} |
370 |
+ |
if (wrongformat > 0) { |
371 |
+ |
wputs(input[nfiles].name); |
372 |
+ |
wputs(": warning -- incompatible picture format\n"); |
373 |
+ |
} |
374 |
+ |
if (!gotview || setview(&input[nfiles].vw) != NULL) |
375 |
+ |
input[nfiles].vw.type = 0; |
376 |
+ |
else if (commvp == NULL) |
377 |
+ |
commvp = &input[nfiles].vw; |
378 |
+ |
if ((input[nfiles].rs.xr <= 0) | (input[nfiles].rs.yr <= 0) && |
379 |
+ |
!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
380 |
+ |
eputs(input[nfiles].name); |
381 |
|
eputs(": bad picture size\n"); |
382 |
|
quit(1); |
383 |
|
} |
384 |
|
if (xmax == 0 && ymax == 0) { |
385 |
< |
xmax = xinp; |
386 |
< |
ymax = yinp; |
387 |
< |
} else if (xinp != xmax || yinp != ymax) { |
385 |
> |
xmax = scanlen(&input[nfiles].rs); |
386 |
> |
ymax = numscans(&input[nfiles].rs); |
387 |
> |
} else if (scanlen(&input[nfiles].rs) != xmax || |
388 |
> |
numscans(&input[nfiles].rs) != ymax) { |
389 |
|
eputs(input[nfiles].name); |
390 |
|
eputs(": resolution mismatch\n"); |
391 |
|
quit(1); |
396 |
|
} |
397 |
|
|
398 |
|
|
399 |
< |
init() /* perform final setup */ |
399 |
> |
static double |
400 |
> |
rgb_bright( |
401 |
> |
COLOR clr |
402 |
> |
) |
403 |
|
{ |
404 |
< |
double l_colin(), l_expos(); |
405 |
< |
register int i; |
404 |
> |
return(bright(clr)); |
405 |
> |
} |
406 |
> |
|
407 |
> |
|
408 |
> |
static double |
409 |
> |
xyz_bright( |
410 |
> |
COLOR clr |
411 |
> |
) |
412 |
> |
{ |
413 |
> |
return(clr[CIEY]); |
414 |
> |
} |
415 |
> |
|
416 |
> |
|
417 |
> |
double (*ourbright)() = rgb_bright; |
418 |
> |
|
419 |
> |
|
420 |
> |
static void |
421 |
> |
init(void) /* perform final setup */ |
422 |
> |
{ |
423 |
> |
int i; |
424 |
|
/* define constants */ |
425 |
+ |
varset("PI", ':', PI); |
426 |
|
varset(vnfiles, ':', (double)nfiles); |
427 |
|
varset(vxmax, ':', (double)xmax); |
428 |
|
varset(vymax, ':', (double)ymax); |
433 |
|
} |
434 |
|
funset(vbrtexp, 1, ':', l_expos); |
435 |
|
funset(vbrtin, 1, '=', l_colin); |
436 |
+ |
funset(vpixaspect, 1, ':', l_pixaspect); |
437 |
+ |
for (i = 0; i < 7; i++) |
438 |
+ |
funset(vray[i], 1, '=', l_ray); |
439 |
+ |
funset(vpsize, 1, '=', l_psize); |
440 |
+ |
/* set brightness function */ |
441 |
+ |
if (!strcmp(ourfmt, CIEFMT)) { |
442 |
+ |
varset(vwhteff, ':', 1.0); |
443 |
+ |
ourbright = xyz_bright; |
444 |
+ |
} else |
445 |
+ |
varset(vwhteff, ':', WHTEFFICACY); |
446 |
+ |
/* these may be overridden */ |
447 |
+ |
varset(vxres, ':', (double)xmax); |
448 |
+ |
varset(vyres, ':', (double)ymax); |
449 |
|
} |
450 |
|
|
451 |
|
|
452 |
< |
combine() /* combine pictures */ |
452 |
> |
static void |
453 |
> |
combine(void) /* combine pictures */ |
454 |
|
{ |
455 |
|
EPNODE *coldef[3], *brtdef; |
456 |
|
COLOR *scanout; |
457 |
|
double d; |
458 |
< |
register int i, j; |
458 |
> |
int i, j; |
459 |
|
/* check defined variables */ |
460 |
|
for (j = 0; j < 3; j++) { |
461 |
|
if (vardefined(vcolout[j])) |
476 |
|
advance(); |
477 |
|
varset(vypos, '=', (double)ypos); |
478 |
|
for (xpos = 0; xpos < xres; xpos++) { |
479 |
< |
xscan = (long)xpos*xmax/xres; |
479 |
> |
xscan = (xpos+.5)*xmax/xres; |
480 |
|
varset(vxpos, '=', (double)xpos); |
481 |
|
eclock++; |
482 |
|
if (brtdef != NULL) { |
483 |
|
d = evalue(brtdef); |
484 |
< |
if (d < 0.0) |
309 |
< |
d = 0.0; |
484 |
> |
d *= (outfloat > 0) | (d >= 0); |
485 |
|
setcolor(scanout[xpos], d, d, d); |
486 |
|
} else { |
487 |
|
for (j = 0; j < 3; j++) { |
492 |
|
for (i = 0; i < nfiles; i++) |
493 |
|
d += colval(input[i].scan[MIDSCN][xscan],j); |
494 |
|
} |
495 |
< |
if (d < 0.0) |
321 |
< |
d = 0.0; |
495 |
> |
d *= (outfloat > 0) | (d >= 0); |
496 |
|
colval(scanout[xpos],j) = d; |
497 |
|
} |
498 |
|
} |
499 |
|
} |
500 |
< |
if (fwritescan(scanout, xres, stdout) < 0) { |
501 |
< |
perror("write error"); |
502 |
< |
quit(1); |
500 |
> |
switch (outfloat) { |
501 |
> |
case 3: /* writing out float triplets */ |
502 |
> |
if (fwrite(scanout, sizeof(float)*3, xres, stdout) != xres) |
503 |
> |
goto writerr; |
504 |
> |
break; |
505 |
> |
case 1: /* writing out gray float values */ |
506 |
> |
for (xpos = 0; xpos < xres; xpos++) |
507 |
> |
if (putbinary(&scanout[xpos][CIEY], |
508 |
> |
sizeof(float), 1, stdout) != 1) |
509 |
> |
goto writerr; |
510 |
> |
break; |
511 |
> |
default: /* writing out Radiance picture */ |
512 |
> |
if (fwritescan(scanout, xres, stdout) < 0) |
513 |
> |
goto writerr; |
514 |
> |
break; |
515 |
|
} |
516 |
|
} |
517 |
< |
efree(scanout); |
517 |
> |
efree((char *)scanout); |
518 |
> |
return; |
519 |
> |
writerr: |
520 |
> |
perror("write error"); |
521 |
> |
quit(1); |
522 |
|
} |
523 |
|
|
524 |
|
|
525 |
< |
advance() /* read in data for next scanline */ |
525 |
> |
static void |
526 |
> |
advance(void) /* read in data for next scanline */ |
527 |
|
{ |
528 |
|
int ytarget; |
529 |
< |
register COLOR *st; |
530 |
< |
register int i, j; |
529 |
> |
COLOR *st; |
530 |
> |
int i, j; |
531 |
|
|
532 |
< |
for (ytarget = (long)ypos*ymax/yres; yscan > ytarget; yscan--) |
532 |
> |
for (ytarget = (ypos+.5)*ymax/yres; yscan > ytarget; yscan--) |
533 |
|
for (i = 0; i < nfiles; i++) { |
534 |
|
st = input[i].scan[WINSIZ-1]; |
535 |
|
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
537 |
|
input[i].scan[0] = st; |
538 |
|
if (yscan <= MIDSCN) /* hit bottom? */ |
539 |
|
continue; |
540 |
< |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
541 |
< |
eputs(input[i].name); |
542 |
< |
eputs(": read error\n"); |
543 |
< |
quit(1); |
544 |
< |
} |
540 |
> |
/* read scanline */ |
541 |
> |
if (input[i].infloat) { |
542 |
> |
if (fread(st, sizeof(float)*input[i].infloat, |
543 |
> |
xmax, input[i].fp) != xmax) |
544 |
> |
goto readerr; |
545 |
> |
if (input[i].infloat == 1) { |
546 |
> |
const COLORV *f = st[0] + xmax; |
547 |
> |
int x = xmax; |
548 |
> |
while (x-- > 0) |
549 |
> |
st[x][BLU] = st[x][GRN] = |
550 |
> |
st[x][RED] = *--f; |
551 |
> |
} |
552 |
> |
} else if (freadscan(st, xmax, input[i].fp) < 0) |
553 |
> |
goto readerr; |
554 |
|
for (j = 0; j < xmax; j++) /* adjust color */ |
555 |
|
multcolor(st[j], input[i].coef); |
556 |
|
} |
557 |
+ |
return; |
558 |
+ |
readerr: |
559 |
+ |
eputs(input[i].name); |
560 |
+ |
eputs(": read error\n"); |
561 |
+ |
quit(1); |
562 |
|
} |
563 |
|
|
564 |
|
|
565 |
< |
double |
566 |
< |
l_expos(nam) /* return picture exposure */ |
567 |
< |
register char *nam; |
565 |
> |
static double |
566 |
> |
l_expos( /* return picture exposure */ |
567 |
> |
char *nam |
568 |
> |
) |
569 |
|
{ |
570 |
< |
register int fn, n; |
570 |
> |
int fn, n; |
571 |
> |
double d; |
572 |
|
|
573 |
< |
fn = argument(1) - .5; |
574 |
< |
if (fn < 0 || fn >= nfiles) |
575 |
< |
return(1.0); |
573 |
> |
d = argument(1); |
574 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
575 |
> |
errno = EDOM; |
576 |
> |
return(0.0); |
577 |
> |
} |
578 |
> |
if (d < 0.5) |
579 |
> |
return((double)nfiles); |
580 |
> |
fn = d - 0.5; |
581 |
|
if (nam == vbrtexp) |
582 |
< |
return(bright(input[fn].expos)); |
582 |
> |
return((*ourbright)(input[fn].expos)); |
583 |
|
n = 3; |
584 |
|
while (n--) |
585 |
|
if (nam == vcolexp[n]) |
586 |
|
return(colval(input[fn].expos,n)); |
587 |
|
eputs("Bad call to l_expos()!\n"); |
588 |
|
quit(1); |
589 |
+ |
return 1; /* pro forma return */ |
590 |
|
} |
591 |
|
|
592 |
|
|
593 |
< |
double |
594 |
< |
l_colin(nam) /* return color value for picture */ |
382 |
< |
register char *nam; |
593 |
> |
static double |
594 |
> |
l_pixaspect(char *nm) /* return pixel aspect ratio */ |
595 |
|
{ |
596 |
|
int fn; |
385 |
– |
register int n, xoff, yoff; |
597 |
|
double d; |
598 |
|
|
599 |
|
d = argument(1); |
600 |
< |
if (d > -.5 && d < .5) |
600 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
601 |
> |
errno = EDOM; |
602 |
> |
return(0.0); |
603 |
> |
} |
604 |
> |
if (d < 0.5) |
605 |
|
return((double)nfiles); |
606 |
< |
fn = d - .5; |
607 |
< |
if (fn < 0 || fn >= nfiles) { |
606 |
> |
fn = d - 0.5; |
607 |
> |
return(input[fn].pa); |
608 |
> |
} |
609 |
> |
|
610 |
> |
|
611 |
> |
static double |
612 |
> |
l_colin( /* return color value for picture */ |
613 |
> |
char *nam |
614 |
> |
) |
615 |
> |
{ |
616 |
> |
int fn; |
617 |
> |
int n, xoff, yoff; |
618 |
> |
double d; |
619 |
> |
|
620 |
> |
d = argument(1); |
621 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
622 |
|
errno = EDOM; |
623 |
|
return(0.0); |
624 |
|
} |
625 |
+ |
if (d < 0.5) |
626 |
+ |
return((double)nfiles); |
627 |
+ |
fn = d - 0.5; |
628 |
|
xoff = yoff = 0; |
629 |
|
n = nargum(); |
630 |
|
if (n >= 2) { |
656 |
|
} |
657 |
|
} |
658 |
|
if (nam == vbrtin) |
659 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
659 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
660 |
|
n = 3; |
661 |
|
while (n--) |
662 |
|
if (nam == vcolin[n]) |
663 |
|
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
664 |
|
eputs("Bad call to l_colin()!\n"); |
665 |
|
quit(1); |
666 |
+ |
return 1; /* pro forma return */ |
667 |
|
} |
668 |
|
|
669 |
|
|
670 |
< |
wputs(msg) |
671 |
< |
char *msg; |
670 |
> |
static double |
671 |
> |
l_ray( /* return ray origin or direction */ |
672 |
> |
char *nam |
673 |
> |
) |
674 |
|
{ |
675 |
+ |
static unsigned long ltick[MAXINP]; |
676 |
+ |
static FVECT lorg[MAXINP], ldir[MAXINP]; |
677 |
+ |
static double ldist[MAXINP]; |
678 |
+ |
RREAL loc[2]; |
679 |
+ |
double d; |
680 |
+ |
int fn; |
681 |
+ |
int i; |
682 |
+ |
|
683 |
+ |
d = argument(1); |
684 |
+ |
if (d <= -0.5 || d >= nfiles+0.5) { |
685 |
+ |
errno = EDOM; |
686 |
+ |
return(0.0); |
687 |
+ |
} |
688 |
+ |
if (d < 0.5) |
689 |
+ |
return((double)nfiles); |
690 |
+ |
fn = d - 0.5; |
691 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
692 |
+ |
if (input[fn].vw.type == 0) { |
693 |
+ |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
694 |
+ |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
695 |
+ |
ldist[fn] = -1.0; |
696 |
+ |
errno = EDOM; |
697 |
+ |
} else { |
698 |
+ |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
699 |
+ |
ldist[fn] = viewray(lorg[fn], ldir[fn], |
700 |
+ |
&input[fn].vw, loc[0], loc[1]); |
701 |
+ |
if (ldist[fn] < -FTINY) |
702 |
+ |
errno = EDOM; |
703 |
+ |
} |
704 |
+ |
ltick[fn] = eclock; |
705 |
+ |
} |
706 |
+ |
if (nam == vray[i=6]) |
707 |
+ |
return(ldist[fn]); |
708 |
+ |
while (i--) |
709 |
+ |
if (nam == vray[i]) |
710 |
+ |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
711 |
+ |
eputs("Bad call to l_ray()!\n"); |
712 |
+ |
quit(1); |
713 |
+ |
return 1; /* pro forma return */ |
714 |
+ |
} |
715 |
+ |
|
716 |
+ |
|
717 |
+ |
static double |
718 |
+ |
l_psize(char *nm) /* compute pixel size in steradians */ |
719 |
+ |
{ |
720 |
+ |
static unsigned long ltick[MAXINP]; |
721 |
+ |
static double psize[MAXINP]; |
722 |
+ |
FVECT dir0, org, dirx, diry; |
723 |
+ |
RREAL locx[2], locy[2]; |
724 |
+ |
double d; |
725 |
+ |
int fn; |
726 |
+ |
int i; |
727 |
+ |
|
728 |
+ |
d = argument(1); |
729 |
+ |
if (d <= -0.5 || d >= nfiles+0.5) { |
730 |
+ |
errno = EDOM; |
731 |
+ |
return(0.0); |
732 |
+ |
} |
733 |
+ |
if (d < 0.5) |
734 |
+ |
return((double)nfiles); |
735 |
+ |
fn = d - 0.5; |
736 |
+ |
if (ltick[fn] != eclock) { /* need to compute? */ |
737 |
+ |
psize[fn] = 0.0; |
738 |
+ |
if (input[fn].vw.type == 0) |
739 |
+ |
errno = EDOM; |
740 |
+ |
else if (input[fn].vw.type != VT_PAR && |
741 |
+ |
funvalue(vray[6], 1, &d) >= -FTINY) { |
742 |
+ |
for (i = 0; i < 3; i++) |
743 |
+ |
dir0[i] = funvalue(vray[3+i], 1, &d); |
744 |
+ |
pix2loc(locx, &input[fn].rs, xscan+1, ymax-1-yscan); |
745 |
+ |
pix2loc(locy, &input[fn].rs, xscan, ymax-yscan); |
746 |
+ |
if (viewray(org, dirx, &input[fn].vw, |
747 |
+ |
locx[0], locx[1]) >= -FTINY && |
748 |
+ |
viewray(org, diry, &input[fn].vw, |
749 |
+ |
locy[0], locy[1]) >= -FTINY) { |
750 |
+ |
/* approximate solid angle */ |
751 |
+ |
for (i = 0; i < 3; i++) { |
752 |
+ |
dirx[i] -= dir0[i]; |
753 |
+ |
diry[i] -= dir0[i]; |
754 |
+ |
} |
755 |
+ |
fcross(dir0, dirx, diry); |
756 |
+ |
psize[fn] = VLEN(dir0); |
757 |
+ |
} |
758 |
+ |
} |
759 |
+ |
ltick[fn] = eclock; |
760 |
+ |
} |
761 |
+ |
return(psize[fn]); |
762 |
+ |
} |
763 |
+ |
|
764 |
+ |
|
765 |
+ |
extern void |
766 |
+ |
wputs(const char *msg) |
767 |
+ |
{ |
768 |
|
if (!nowarn) |
769 |
|
eputs(msg); |
770 |
|
} |
771 |
|
|
772 |
|
|
773 |
< |
eputs(msg) |
774 |
< |
char *msg; |
773 |
> |
extern void |
774 |
> |
eputs(const char *msg) |
775 |
|
{ |
776 |
|
fputs(msg, stderr); |
777 |
|
} |
778 |
|
|
779 |
|
|
780 |
< |
quit(code) |
781 |
< |
int code; |
780 |
> |
extern void |
781 |
> |
quit(int code) /* exit gracefully */ |
782 |
|
{ |
783 |
+ |
int i; |
784 |
+ |
/* close input files */ |
785 |
+ |
for (i = 0; i < nfiles; i++) |
786 |
+ |
if (input[i].name == Command) |
787 |
+ |
pclose(input[i].fp); |
788 |
+ |
else |
789 |
+ |
fclose(input[i].fp); |
790 |
|
exit(code); |
791 |
|
} |